GB426505A - Improvements in or relating to television transmitting and the like systems - Google Patents

Improvements in or relating to television transmitting and the like systems

Info

Publication number
GB426505A
GB426505A GB34346/33A GB3434633A GB426505A GB 426505 A GB426505 A GB 426505A GB 34346/33 A GB34346/33 A GB 34346/33A GB 3434633 A GB3434633 A GB 3434633A GB 426505 A GB426505 A GB 426505A
Authority
GB
United Kingdom
Prior art keywords
screen
anode
electrons
relating
systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB34346/33A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL41920D priority Critical patent/NL41920C/xx
Application filed by Individual filed Critical Individual
Priority to GB34346/33A priority patent/GB426505A/en
Priority to FR781693D priority patent/FR781693A/en
Priority to US754385A priority patent/US2153163A/en
Priority to DEE46348D priority patent/DE755286C/en
Publication of GB426505A publication Critical patent/GB426505A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/39—Charge-storage screens
    • H01J29/43—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen

Abstract

426,505. Television. TEDHAM, W. F., 267, Woolwich Road, Abbey Wood, London. Dec. 6, 1933, No. 34346. [Class 40 (iii)] An image of an object 15 is continuously projected, as by a lens 14 and mirror 13, onto a mosaic screen of photo -electric elements 6, and the screen is scanned by a light spot preferably derived from the movement of a cathode ray beam 10 over a fluorescent screen 9. The scanning beam causes saturation emission of electrons from each element 6, which pass to the anode 7, bringing each element 6 to the potential of the anode, e.g. 20 volts. When an element 6 is illuminated by the light from the object only, the electron emission decreases and the electrons leak through a semi - conducting layer 5, e.g. aluminium oxide, to the plate 4. The current through resistance 17 produced by the scanning action provides the output for amplification and transmission.
GB34346/33A 1933-12-06 1933-12-06 Improvements in or relating to television transmitting and the like systems Expired GB426505A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL41920D NL41920C (en) 1933-12-06
GB34346/33A GB426505A (en) 1933-12-06 1933-12-06 Improvements in or relating to television transmitting and the like systems
FR781693D FR781693A (en) 1933-12-06 1934-11-22 Improvements to TV transmitters and similar devices
US754385A US2153163A (en) 1933-12-06 1934-11-23 Television transmitting and the like system
DEE46348D DE755286C (en) 1933-12-06 1934-12-04 Saving picture transmitter tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34346/33A GB426505A (en) 1933-12-06 1933-12-06 Improvements in or relating to television transmitting and the like systems

Publications (1)

Publication Number Publication Date
GB426505A true GB426505A (en) 1935-04-04

Family

ID=10364498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34346/33A Expired GB426505A (en) 1933-12-06 1933-12-06 Improvements in or relating to television transmitting and the like systems

Country Status (5)

Country Link
US (1) US2153163A (en)
DE (1) DE755286C (en)
FR (1) FR781693A (en)
GB (1) GB426505A (en)
NL (1) NL41920C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739261C (en) * 1937-05-15 1943-09-16 Rca Corp Operating method for a cathode ray transmitter tube with a mosaic screen and a fused-on secondary electron multiplier
DE892144C (en) * 1935-11-14 1953-10-05 Fernseh Gmbh Electron beam tube with photocell mosaic

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540490A (en) * 1948-03-29 1951-02-06 Philips Lab Inc Electron device with semiconductive target
US2588292A (en) * 1950-04-20 1952-03-04 Philips Lab Inc Electron switching tubes and circuits therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1691324A (en) * 1925-07-13 1928-11-13 Westinghouse Electric & Mfg Co Television system
AT127557B (en) * 1928-04-25 1932-04-11 Riccardo Bruni Electric television.
GB335995A (en) * 1929-06-04 1930-10-06 Francois Charles Pierre Henrot Improvements in or relating to television

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE892144C (en) * 1935-11-14 1953-10-05 Fernseh Gmbh Electron beam tube with photocell mosaic
DE739261C (en) * 1937-05-15 1943-09-16 Rca Corp Operating method for a cathode ray transmitter tube with a mosaic screen and a fused-on secondary electron multiplier

Also Published As

Publication number Publication date
DE755286C (en) 1952-05-19
FR781693A (en) 1935-05-20
US2153163A (en) 1939-04-04
NL41920C (en)

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